Earth’s atmosphere now has more carbon dioxide in it than it has in millions — and possibly tens of millions — of years, according to data released Thursday by the National Oceanic and Atmospheric ...

Earth as seen from the moon's orbit during the Apollo 8 mission in 1968, with updated color based on lunar and Earth observations. Credit: NASA At a federal research lab located at 11,135 feet (3,397 ...

Carbon dioxide is accumulating in the atmosphere faster than ever—accelerating on a steep rise to levels far above any experienced during human existence, scientists from NOAA and the Scripps ...

Add Yahoo as a preferred source to see more of our stories on Google. Carbon dioxide may be a naturally occurring substance on Earth, but too much of its presence has contributed to global warming, ...